/Engine/Source/Runtime/SlateCore/Public/Rendering/DrawElementTypes.h
static void MakePostProcessPass ( [FSlateWindowElementList](API\Runtime\SlateCore\Rendering\FSlateWindowElementList) & ElementList, uint32 InLayer, const [FPaintGeometry](API\Runtime\SlateCore\Layout\FPaintGeometry) & PaintGeometry, const FVector4f & Params, int32 DownsampleAmount, const FVector4f CornerRadius )